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Groups > comp.lang.c++ > #86886

Type conversion for hundreds of lines

From JiiPee <kerrttuPoistaTama11@gmail.com>
Newsgroups comp.lang.c++
Subject Type conversion for hundreds of lines
Date 2022-10-12 23:48 +0300
Organization A noiseless patient Spider
Message-ID <ti797c$1it17$1@dont-email.me> (permalink)

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I have been pondering this many times. I keep it short:
If I have hundreds of lines like this:

short a;
std::vector<int> v;
...
a = v.size();

This gives a warning: "warning, assigning size_t to short".
I know this can be fixed:
a = static_cast<short>(v.size());

but if we have hundreds of those lines, how would you fix this? Place a 
static cast in all of them? Of create some helper funktion to do this?

How about if I have a function created by me before:
size_t CalcLength(int a);

and then I call it 100 places like this:
short b;
b = CalcLength(466);

again type warning. Would you fix it by placing static cast in 100 
places like this:

b = static_cast<short>(CalcLength(466));

wherever this cast can be done? And what if CalcLength() can in some 
code places return a large number also? So we cannot just blindly change 
the return type to "short" to solve this.

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Thread

Type conversion for hundreds of lines JiiPee <kerrttuPoistaTama11@gmail.com> - 2022-10-12 23:48 +0300
  Re: Type conversion for hundreds of lines JiiPee <kerrttuPoistaTama11@gmail.com> - 2022-10-12 23:54 +0300
    Re: Type conversion for hundreds of lines JiiPee <kerrttuPoistaTama11@gmail.com> - 2022-10-12 23:55 +0300
      Re: Type conversion for hundreds of lines Ben Bacarisse <ben.usenet@bsb.me.uk> - 2022-10-12 23:26 +0100
        Re: Type conversion for hundreds of lines JiiPee <kerrttuPoistaTama11@gmail.com> - 2022-10-13 07:30 +0300
          Re: Type conversion for hundreds of lines Ben Bacarisse <ben.usenet@bsb.me.uk> - 2022-10-13 12:19 +0100
    Re: Type conversion for hundreds of lines Paavo Helde <eesnimi@osa.pri.ee> - 2022-10-13 00:37 +0300
      Re: Type conversion for hundreds of lines JiiPee <kerrttuPoistaTama11@gmail.com> - 2022-10-13 07:34 +0300
        Re: Type conversion for hundreds of lines Paavo Helde <eesnimi@osa.pri.ee> - 2022-10-13 11:43 +0300
  Re: Type conversion for hundreds of lines Paavo Helde <eesnimi@osa.pri.ee> - 2022-10-13 00:27 +0300
    Re: Type conversion for hundreds of lines JiiPee <kerrttuPoistaTama11@gmail.com> - 2022-10-13 07:24 +0300
      Re: Type conversion for hundreds of lines Paavo Helde <eesnimi@osa.pri.ee> - 2022-10-13 12:00 +0300
        Re: Type conversion for hundreds of lines JiiPee <kerrttuPoistaTama11@gmail.com> - 2022-10-13 20:27 +0300
      Re: Type conversion for hundreds of lines David Brown <david.brown@hesbynett.no> - 2022-10-13 11:17 +0200
        Re: Type conversion for hundreds of lines JiiPee <kerrttuPoistaTama11@gmail.com> - 2022-10-13 20:32 +0300
          Re: Type conversion for hundreds of lines Paavo Helde <eesnimi@osa.pri.ee> - 2022-10-13 21:13 +0300
            Re: Type conversion for hundreds of lines JiiPee <kerrttuPoistaTama11@gmail.com> - 2022-10-13 21:28 +0300
          Re: Type conversion for hundreds of lines David Brown <david.brown@hesbynett.no> - 2022-10-13 23:10 +0200
          Re: Type conversion for hundreds of lines Mike Terry <news.dead.person.stones@darjeeling.plus.com> - 2022-10-13 22:36 +0100
            Re: Type conversion for hundreds of lines JiiPee <kerrttuPoistaTama11@gmail.com> - 2022-10-14 07:29 +0300
  Re: Type conversion for hundreds of lines scott@slp53.sl.home (Scott Lurndal) - 2022-10-12 21:27 +0000
    Re: Type conversion for hundreds of lines JiiPee <kerrttuPoistaTama11@gmail.com> - 2022-10-13 07:25 +0300
  Re: Type conversion for hundreds of lines Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2022-10-12 14:30 -0700
    Re: Type conversion for hundreds of lines JiiPee <kerrttuPoistaTama11@gmail.com> - 2022-10-13 07:28 +0300
      Re: Type conversion for hundreds of lines "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2022-10-12 21:30 -0700
        Re: Type conversion for hundreds of lines JiiPee <kerrttuPoistaTama11@gmail.com> - 2022-10-13 07:37 +0300
          Re: Type conversion for hundreds of lines "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2022-10-13 14:18 -0700
            Re: Type conversion for hundreds of lines JiiPee <kerrttuPoistaTama11@gmail.com> - 2022-10-14 00:27 +0300
              Re: Type conversion for hundreds of lines "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2022-10-14 00:33 -0700
  Re: Type conversion for hundreds of lines Juha Nieminen <nospam@thanks.invalid> - 2022-10-13 07:52 +0000
    Re: Type conversion for hundreds of lines JiiPee <kerrttuPoistaTama11@gmail.com> - 2022-10-13 20:35 +0300
  Re: Type conversion for hundreds of lines Frederick Virchanza Gotham <cauldwell.thomas@gmail.com> - 2022-10-14 01:43 -0700

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